Exercise: By Two

Create an int named myNumber and assign the value 17 to it. Write code that prints the following, where the last number in each line is the result of a computation.

17 plus 2 is 19
17 minus 2 is 15
17 multiplied by 2 is 34
17 divided by 2 is 8
17 modulo 2 is 1

Now change so that you use the number 18 instead of 17 - you should only have to change in one place!

• The new output should look like below

  18 plus 2 is 20
  18 minus 2 is 16
  18 multiplied by 2 is 36
  18 divided by 2 is 9
  18 modulo 2 is 0
  

Exercise: By Three

• Change the code you wrote in “By Two” so that you use 3 instead of two.
• Do you have to change in more than one place? How could you change your code so that you only need to change in one place?
• After you have updated the code so that you only need to change it in one place test it out by changing from 3 to 4.

You should see the following output

18 plus 4 is 22
18 minus 4 is 14
18 multiplied by 4 is 72
18 divided by 4 is 4
18 modulo 4 is 2